Hydroflying-machine.



E.4 PORLANINI. HYDROPLYINGy MACHINE. vAPPLIoMrIoN FILED APR. a, 1905.

. Patented Sept. 29, 1914.

9 SHEETS-SHEET 2.

E. PORLANINI. v HYDROFLYING MACHINE. APPLICATION FILED APB. 6, 1906.

Patentd Sept-'29, 1914.

9 SHEETS-SHEET 3.

o QIAVIIu n E. FORLANINI. HYDROFLYING MACHINE.- ArPLIoA'rIoH FILED APB. e, 1905.

Patented Sept. 29, 1914.

9 SHEETS-SHEET 4.

E. PORLANINI. HYDROPLYING MACHINE.

APPLIOATION FILED APB. e, 1905.

1, 1 1 2,405, Patented Sept 29, 1914.

9 SHEETS-SHEET 5.

E. FORLANINI. HYDROPLYING MACHINE.

1, 1 1 2,405. APPLICATION FILED APR. 6,l 1905. Sept. 29,

9 sHBBTs-sHEnT e.

E. FORLANINL HYDROPLYING MACHINE.

APPLIUATION FILED APR. a, 1905.

1, 1 1 2,405. Patented Sept. 29, 1914.

9 sHEETs-SHBET 7.

E. FORLANINI.

HYDROPLYING` MACHINE.

APPLIOATION FILED APR. 6, 1905. 1, 1 12,405. Patented Sept. 29, 1914.

9 SHEETS-SHEET 8.

,l E. PORLANINI. HYDROFLYING MACHINE.' APPLICATION FILBD'APR. 6, 1905.

Patented Sept. 29, 1914.

9 SHEBTS*SHEET 9.

cocoon ooononoo gnve'ntoz 8711.114200 ENRICO FORLANINI, v02E" MILAN, ITALY.

HrDnorLYING-MACHINE.

Specification of Letters Patent.

Patented sept'. 29, i914..

Application led April 6,r 1905. Serial No.-254,174.'

To all 'whom t may concern.'

'Be it known that I, ENRICO FoRLaNINI, mechanical engineer, subject of the/King of italy, residing at 21 Via Boccaccio, Milan,- Ita.ly,hayejinvented certain new and useful Improvements -in Hydrofiying-Machmes; and I do, hereby. declare the following to be a full, clear, and exact' description ofy the invention, such as will enable others skilled in the art to which it apporta-ins to make and use the same. 4

My invention relates to improvements in appara. us for flying above the. water as well as in tie air, and the object of said improvements is a machine supported not `by static Ibi-ut by dynamic reaction of the water -or of the air or of both, exerted upon surfaces connected in any 'convenient manner with the body of the apparatus.

A complete machine construction' according to the present speciiication is able to travel in three different ways, that is: with the body floating o'n the water, (2) with'the body in the air and some supporting surface-s in the water', and (3) with all its parts inv the air. It is understood that machines construct-ed according to my improvements may also be used for traveling at all times in Contact with the Wate-r, in which case the surfaces utilizing the dynamic reaction. of the air can be dispensed with. l

1n the following specification. besides a description of different forms of my a-pparatus, hereinafter designa-ted as a hydro-- flying machine, '1 will give an explanation. of the theoretical condition upon which its working is dependent, and. of the -reasons which haveledto the adoption of the pro- .portions and forms hereinafter described.

y In the accompanying drawings: Figure 1 is a side view of a little model based on my invention; Fig. 2 is a plan view of the same; F ig. 3 is'a side -view of an apparatus capable of supporting two persons; Fig. 4 is a front 'view of the same; Fig. 5 is a plan of the same; Figs. 6 to 11 illustra-te details of the apparatus shown in Figs. 3 to 5; Fig. 12 shows mv apparatus provided with screw propeller; Fig. 13 is a diagrammatical View illustrating th'ccondition of the blades of my apparatus in wavy water; Fig.. 14 is a detail view of mechanism for automatically adjusting the slope of theblades; Fig. 15 shows a special construction of the blade vcrease the resistance of the air.

supports; Fig. 1G is a side View of a selfpropelling hydro-flying machine; Fig. 17 is a pla-n View, and Fig. 18 is a front View of Fig.l 16; Fig. 19 is a'detail view illustrating the blades and their support, as used in the apparatus of Figs. 1G to 19; Fig. 2() shows a modified form of propelling means; Fig. 21 is a side view of a further modification of my apparatus; Fig. 22 is a pla-n of Fig.

l21; Fig. 23 shows a detail of Fig. 21; Figs.

29; Fig. is a section of ajblade c-onsistf ing ofsoldered lamellen, Fig. 33 is a secltion of a rod consisting of soldered lamelloc, Fig. 34., a sectional elevation showing the resilient supports for the supporting members or Ibeams, and F ig. 35, a transverse vertical section on line A-B of Fig. 34.

Similar letters of reference refer to similar parts throughout the different views.

`For the purpose ofbetter explaining my invention, I will at first describe some forms of my apparatus which are provided only with surfaces utlllzmg the dynamic reaction yof the Water, and are not able therefore to travel in the air alone; these .forms of my apparatus being intended to remain in con tact with the water, can have also propellers and rudder acting upon the water. In the Figs. 1 and 2 I' have shown ai first example of such kind l, of machine, consisting of a tubular body portion C of sheet metal such as iron, provided at both ends with conical extensions, the purpose of which is to de- Near its front and rear, the body portion (l is providedwith a pair of laterally extending tubular arms B B screwed into suitable' sockets o o.' Attheirouter extremities said arms B3B are provided with rods or legs G G thc upper tubular portions (Z (Z of which are guided inforwardly inclined sockets Z) b rigidly connected with the arms B B. Set screws o o are arranged to hold said legs in their places. Each leg lor rod G is provided with a plurality of slightly concave blades l a a arranged substantially perpendicular to the leg. These blades are inclined backward and downward so that the Water, during the forward travel of the machine, Vwill exert sufficient pressure on theirl under surfaces to support theibody portion C above the surface. To adjust the angle of inclination of the bladesat will and according to the requirements of the travel, the arms B B can be turned about their longitudinal axis. The apparatus illustrated in these gures is not provided with a propeller of its own, but is designed to be towed by a boat or the like, a rope m n. being provided for this purpose. I may state here that a modelconstructed according to Figs. 1 and 2 and having a weight of five kg. or eleven pounds, being towedat a speed of one to three meters per second, the elevation of the` body portion C above the surface of the Water varied between three and sixinehes according to the speed, the number of submerged blades varying with the speed, and the resistance of the appara' tus, measured by the tension of the rope m n, not exceeding 700 g. or about one pound and a half, that is Vabout J7- of the total Weight of the apparatus.

In Figs. 3 to 11 I have illustrated a seeond example of the same kind of apparatus, but designed to support two persons. Its body portion consists of two sheet metal tubes C C having pointed ends and a tube D of smaller diameter and greater length than the tubes C, C. The tubes C, C and D are connected to one another b meanscf tubular cross bars t, t. The tube D is provided with a rudder T and, at its stem, with a vertical rod, to which a rope m, n is aiiixed by means of which the apparatus can be connected to a motor boat or the like to be propelled thereby. The tubes C, C are provided at their front and rear, with laterally extending arms B, B revolubly mounted in the first and last one of the cross bars t, t.

` At their projecting portions the armsB are provided with legs Gr lr extending downward therefrom and having adjustable supports in suitable sockets b, b.' Each pair of legs G Gr is provided at its lower end with a plurality ofblades una, arranged one above the other at suitable distances from one another and inclined, as explained with refer ence to Figs. 1 and 2.

In order to explain my invention, I shall give certain results of my investigations referring to the subject matter of the same. [t has been demonstrated that the weight y) that can be supported by a certain blade having a certain inclination is substantially proportional to the square of its speed (el). The resistance s of the blade during the travel of the machine, which is to be overcome by the propeller, is also substantially proportional to the square of the speed (c2). The resistance of a number of superimposed submerged blades is therefore proportional to saidnumber. If now my machine travels at an increasing. speed (e) the number of the supporting blades traveling below the surface of the water will decrease proportionally to the square of the speed (e2). There is, therefore, an increase of the resistance of the machine proportionally to v2, on account of the increased resistance of the ,different blades and at the same time a decrease of the resistance of the machine also proportional to o2, on account of the decreased number of submerged blades. It follows, therefore, that the resistance of the machine is independent of its speed, and that, furthermore, the energy required for propelling my machine is proportional to its speed. This conclusion is also applicable theoretically to other machines sustained more or less but never totally by the dynamic reaction of the water, but/"for such other machines the reality does not respond to the theory, because' the surface emerging from the water with the increasing of c remains alwaysvery near to the water and therefore always more or less exposed to its resistance, this fact annulling the principal characteristie of such kind of apparatus that is to be exposed t0 a resistance s constant and independent from c'. My apparatus on the contrary is provided with water-blades which are disposed at different levels in such a way that when, by the increasing of o, some or all of them become superfluous as supports of the apparatus and withdraw from the Water, they get far away from the same and are entirely and continually out of contact therewith. My apparatus realizes therefore and for the first time, practically and effectually the above mentioned law on l'the constancy of theresistance independently of n.

It will readily be understood that the values y) and s vary according to the depth to which the blade is submerged and they have their smallest measure when the blade just glides with its front edge over the surface of the water. The values are increased by 602i. if the blade is what maybe termed a deep blade, that is, if it is subn'lerged to a depth about equal to its length, the length of the blade being in this case its dimension in the line of tra-vel. The values 7? and s are also dependent upon the inclination (X) of the blade to the line of travel; and l have found that a blade is most eilieient, that is,

has its greatest measure.

erally speaking, it increases with the pro- 'latera1 to the longitudinal dimension could be also a hundred or more to one.

I prefer to use concave blades, disposed with their concave side downward, and I attain the best results with blades having v travel. In the case of the blades being conthe maximum cavit at about one third of the longitudinal dlmensionofy the blade, from the front edge; the heightv of the arch.' being one twentieth of the same longitudinal dimension in the line of travel.'

' `In Figs. 6 toll Iy have illustrated -`in de` tail the most advantageous yform of the blades of my apparatus and theirpsup orts which form Ihave 'found by extende eX,-- periments. Figs. 6 tol 8 show a suitable'connection of the blades lwith the legs G. In the present exam le, each blade a lis con` nected with bothl egsl G G mounted von the .laterally extending arms B B, theconnection being obtained through simple piercing and welding without any screws or the like. To diminish their resistancey to the water, the legs or rods G G are' made of lenticular, preferably unsymmetrical cross-section, the maximum thickness being at about theA distance from the front edge. Tominimize said cross-sectiom, the legs are arian'ge'd tov coincide with the resultantot the p essure of Ithe water yon the blades, whereby they cross section can decrease downward. That is to. say, the 'legs `or rods are' connected to the -blades substantially alongy the geometrical locus of the centers ofthe water pressureof the lon 'tudinal nelements of the blades formed y dividing the same by imaginary vertical planes parallel to the directionof nected to a single rod or leg, the point Oif connection is substantially at the center of pressure onl the blade,'.,"I`he proportion of Awith, relation" tothe point of connection to the thickness to the length offthe legs is advantageously very small, ,in any case not more than i and preferably."11T,only.; The form yof the blades, Figsf),` 10 and-11 is similar to `that of the wings of birds; the

edges of the Same should l.be as sharp` als possible especially the :posterior: one. Theses blades are'made ysubstantially as solids of uniformv .resistanceVA to the bending strain the legs G, Gr..v Adjacent to the front edge I prefer to strengthen the rim by thickening or bulgingits underside' as shown at l,K in lFig. 9.,. I thereby prevent eddies from bealong the under side of the blade, yandtat the rlarger scale than the longitudinal ones, said same time, I increasethe stiffness of the lati ter.-.y Fig. 114 shows a cross 'section .of :thel taaie-aken on the line z-z z of Fig. 1o, where the scale of the verticaldimension is' much larger than that. of, the horizontal Adimension. It will-be seen-from said ligure, v that for the urpose of lessening the resistance which t e blade offers to the water, I

make the thickness of the blade proportional to themoment of flexion to'each point of its transversal cross-section. For the same purpose "I dispose the supporting legs in a way that the lateral ends of each blade remain free outside said legs, this -fact allowing a further reduction 'of the thickness of thel blades. For the same purpose, IV construct' the blades Va. and also the legs G of the `best st 'and' preferably, rof lsaw-blades, solderedtogether, as shown in Figs. 32 and'33, where the vertical dimensions are on va much saw-blades having a resistance up to 9100 kg. per mm2 whereby I can use thinner blades l and'legs.I The blades and legs should also be hig ly polished, andcoated with anoncorrosive material, such as nickel to protect them against rusting'and still more to diminish/the friction. A l While I have described,".i`n referring to Figs.' l to 5, machines having a plurality of 95 superimposed submerged blades, I wish it to be understood thatI 'can also use, in my machine, 'superficial blades, that is, blades glidin over the surface of the water. I have o'und, however,l that in practical usethe deep blades are preferable, particularly ,as they permit the use of my machine vin rough water, as will be s et forth hereinafter.

`I'. have found some formulas, based on,` practical experiments, for the construction 10 of'practical and operative machines. Said formulas are:

From Athese formulas, differentiating, itre sults that -ethe'maximal ratio E. 'is 'obtained 115 EwhenXzOGB (the radins being here-taken as Tunity) withwhich value vsaid formula` gives 9 1 H e QPIQIS,

whereQ P is the weight of,. the whole fof the. apparatus,lA the total area ot the blades in .125 square meters, V the speed ofthemachine in meters per second, and S the horizontal y resistance of the same measured in kilograms. ing caused bythe movement. of the water '4 It follows 'from the last equation thatlthe horizontal force .necessary to propel the ape l if-3e paratiis is only one twenty-first part of the weight of t-he entire machine, which value has been proved, by my experiments, when somewhat modified on account of practical conditions, to be substantially correct.

The surface ofthe blades and their numberfwill be found'from the first one of my equations, the 4total surface being:

or by inserting "instead of P the weight T of the machine in tons, of 1000`kilograms;

. which, incase of the smallest useful practical measure of the speed, namely, about 18 miles per hour, gives a .total surface of the 20 blades of T that is m2 for one ton of Weight, which value is Aless than one-tenth of Ae areay of the blades used in rexperi- 'men s heretofore made in the same line. The considerable advantage attained by this lnew departure will b`e apparent, when the "considerable increase of the resistance is takenin consideration that results from an increase of Ithe area of the blades. i

An important principle of my machine is that, apart from the blades, as small part of the same as possible comes vin contact with*l the Water lduring the travel, whereby i the resistance .is decreased to a minimum,

and thereforemy apparatus is distinguished in this respect fromthe` machines designed would, by its supports', `unduly increase the resistance of, the machine,` so that high speeds couldnot be attained. II obviatel this diliculty by arranging the shaft of the propeller at a large angle to the surface'of the water by. using a propeller f smalldiameter and' by 'submerging .it only to such an 5 extent as is required toeover its blades by the water. The part 'of its support that is in contact with thewvater is therefore reduced to a minimum. The construction of a propeller of this kind is illustrated in Fig.y 12 0 in which C is the body portion lof my apparatus,' E the 'p'ropellermounted in an inelined bearing e, and T ythe rudder. In

quiet water, l can still further decrease thew resistance of 'the support of the propeller, by arranging the latter with its upper half suitable position.

` also consideration.

Of importance" with respect to the re;

above the surface of the water. In this case, however, it is advisable to use two propellers,

revolving in opposite directions", whereby the lateral pressure exerted by the `blades of the propeller on the apparatus is counteracted. Toavoid totally the resistance of the water on the propellers supports, one or more paddle-wheels 'can be used, mounted in any Fig. 20 shows a paddlewheeel E3 disposed at the stern and mounted on a pair ofV beams Zpivotally supported on the hull C at lz.. A rope 71 7' can regulate the position of the Wheel. Automatic regulating means may be designed by using blades similar to the blades a, a as a support for the wheeel. The resistance of the water, however, is decreased in the most efficient manner by using aerial screw-propellers as will be moreifully described hereafter. y

The construction of the rudder deserves Referring to a waterrudder, it is to be stated that to decrease the resistance of the rudder, it should be made of very strong material of lenticular crosssection and of downwardly tapering and, preferably, of isosceles shape (see Fig. 12), the principles of construction being the same as those explained with reference to the construction ofthe blades a and the legs G. During the regular travel it should be raised entirely out of the water for which purpose it is supported, for example, by a swivel bearing t as shown in Fig. 12. lUnder certain circumstances, I may entirely dispense with the use of a rudder, themachine being steered in this case by varying the resistance o-f the blades of one side'or the other. can be effected, for instance, by varying the slope of the blades or by other means. It is of importance to dispose the whole orfpart of the supporting surface at a certain lateral distance on both sides of the body portion to insure the transversal equilibrium of the apparatus. Said distance 1s usually of three to four times the height of the center of gravity of the machine above the surface of the water.

The iniiuence of the waves `on the operation of the machine is illustrated in Fig. 13. It appears therefrom that, referring to one and the same leg, the number of blades submerged (connected therewith). must vary with the variations of the waves. It follows that the vertical pressure exerted by the waterupon blades of one and the same leg is subject to big variations, which fact causes the machine to follow a vertically curved line as indicated by W-VV instead of the straight line M-N and furthermore results in considerable and instantaneous variations in the strain of its parts. Another consequence of the above mentioned' fact is that: by the going up and down of the singl(` blade-groups, also the slope of the blades varies, whereby a further variation oi' strains affects the system. To obviate par' ThisI .tially these disadvantag ,"'f-'I may-mount aflarge number ofsmall bla eson every one of the legs (see leg G1vof Fig. l.) and dispose them at suitable distances.y "-,Itds apparent that the proportion/of lthe number-of blades, raised momentarily above thesurfaetato the total number of theblades, andtthereby the .difference in` the vertical creased, as Will appear particularly from an inspection of the legs G1, G2 and their blades l [n this casevone of the blades,'a3, has avery large area while the other' blades, a and a2, y

-areycomparatively small. Bythis arrangement, I avoid the necessity of using le of anexcessive length'.l Indescribing't I have develope vI show as an example, a supplementary blade e b ades' l have called attention tothe" fact thatr the vertical pressure exerted' by the water on fthe bladesdepends on the angle of inclination vof the blades-andI on the speeds of `the machine. To re'ulateand utilize this eiect, Lseveral means. In' Fig. 14

@"supported cnaV leg G1 which will come in contact' with the water as soon as .the lapparatus begins to sink on account ofa decrease of the speed.l Theleg G1 .is supported on links g g1" mounted on lthe body C and connected with the regulator R of the motor F to increase the speed when the blade a is moved upward by the pressure of the water. The same result canbe attained byincreasing the angle ofthe blades to the vline of travel. For this lthehorizont'al arms B in Figs. `1 and 2 andin Figs. 3 to 5 are-revolubly mounted 'on thebody portion of the machine. gTorender "the operation automatic,l I have modiiiedthel yconstruction as shownI in Fig.` 1:4.' 'The leg'fG1 is pivotally supportedv onl the body", brtion Gora part connected therewith.'` The link yg2v is formed as a bell crankjlev/erfhavingfa'downward eX- tension `g3 connectedy tdth'eleg Gby a link g4. If now the body fportionQ-C' lis lowered, the blade a willcoinein Contact with the Water, whereby the'leg G1 will be moved up- Wardfandcausef `'leg G2 toswing for- Ward, vwhereby 'it angle'of inclination of the blade a2 sin'cre'ased' To avoid sudden change ofthe slope ofthe bladegthe opera-` tion isy controlled by yan I oil j regulated: piston and cylinder 4Q,cloperating 'Withvsuitable springs or'jcounterwe'ights'. ".Theleg G1' o-r GZmay also be connected with'th'e "regulator of the 4propellerA mechanismfas explained above. The mechanism shown."finFig."'14 will also be used to great "advantag'e'to` overcome the considerablefiniuence 'of' the waves on the machine. A further means 'torontrol the elevation' of the lniaehine above ythe water is illustratedin Fig. 15. 'lheblades c, a are mounted on tubular legs G telescoping/o'ne inside thefother. "The distance of pressure, is de- ,traveling at lows eed.`

the b1adesfrom one another can thus be varled. These tubular legscan bepshifted y longitudinally with relation to -each other, as

will be readily understood, either manually, or though=`su1table mechanism'.v The blades are thus caused to approach orto recede from each other, wherebyfth'elsame variations in the supporting capacity of the blades may be attained asjin the case where the respective areas of the blades are varied. To avoid vibration I .provide springs, s -s between the supporting members or armsLB, and the bod Aportion or hull C, of, themachine, `as in icated in Figs. 34 and 35. -In the foregoing I- have explained -.the

'willi describe other and more 4complete forms of construction of my. machine. In

Figs. 16 to 19, Cl represents lthe bodyporrtionoi an apparatus, built approximatel `inthe form Aof a boat. It is provided wit 'a suitable wind guard H to' protect the pas` s'lengers and 'at the same time to ldiminish the air-resistance.' [Nearjth'e 'stemarms in the Vforms of beamsjB- are mounted crosswise of the hull and extend""'lateralhr therefrom'. They are preferably'coverpd withI a jacket principle of my invention. Inpthe following i b of` sheet metal havingthe form ofl the cross-.section of a birdswxng. At theirouter extremities, said beamsv are provided with 'legs G supporting superimposed blades a, a.

I prefer to use a plurality, of legs G on both sides of the ybody portion C, whereby I can construct the blades a a of very Vthin mate-y rial. A beam'Bfof small length is provided at the stern of the hull; the legs'G, connected with this beam, carry blades a which are disposed immediately under lthe hull. v The apparatus is* thus supported by three groups of blades, arranged, horizontally, atthe corners of a triangle, so .thatthe Waves origie.

nated 'by thewanterior blade groups do not disturb lthe working of the posterior ones. Other -suitable yarrangements oi the-blade groups, for instance, in form l of a trapezlum,

rnayalso be adopted ,for the same purpose;

The angle of inclinationof the blades can be variedby turning the beams B 'and B about their longitudinal axes.` 'Through ,this turning of thebeams itis also possible fully to withdraw the *blades` from water.-1The machine is provided with air propellerslE :E1- revolving in opposite directions 1and mounted on suitable shafts i i and e, e; a motorFconnected with. the shafts.' by'y chains f f2 being designed to'drive the screw-propellers. In Figs. 18, 19 I have, shown also yhow thearea of the blades of a' group maydecreasedownward.' Through this.;V or similar arrange? `ment a smallery numberff of' blades is needed,

whereby'the uppery larger ones are intended y for fthe starting of the machine and for I have illustrated a isa i pellers E E3 are used, both being disposed at the stern of the body portion or hull on arms extending laterally therefrom and having a wing-like form as shown Fig. 23. 'Ihe shafts z', z' andvdrivinggearing ev c2 should be covered by Wing-like jackets H1. This machine also illustrates a further departure by using an air rudder T.

Figs. 24 and 25 illustrate a further structure ofm my invention. In this example, the shaft of the screw-propellers is disposed substantially on the axis of the hull. In vorder to prevent the hull from being rotated, I may use two propellers E4, E5, one being arranged at the stern and the other one at.the stem. They might be located, however, both .at the stem or both at the stern, in which cases, however, they should be made of different diameters. Inall cases, they must rotate'in opposite directions to counteract the reactions due totheir rotation. Another suitable arrangement consists in using only one aerial propeller, and counteracting its reaction on the body portion through suitable distribution of weights.

y Fig. 26 gives an example of a big blade supported on a plurality of legs G Gr in such a Way 'that two or more legs resultl on the same longitudinal cross-section, whereby the thickness of the blade can be reduced. The example also shows a means to regulate the slope of the blades.` Forthis purpose, the legs G G are pivotally supported on a common bracket g5. A link g. connected to the legs G G serves to adjust the angle.

In Fig. 27 I illustrate how my improved blades may be applied to the hull C of la boat in order to decrease its draft, or to raise its stern, and thereby to improve its water line and to increase its speed without increasing the resistance ofthe water. For this pur-` pose, I arrange legs G and blades a at suitable p'oints on the sides of the hull. In the present example, Where the intention is merely to raise the stern, the' blades-are disposed nearthe stern. Fig. 28 shows how Ait is possible to apply to a little boat, for instance, of one ton, two blades at the stem, and two atfthe stern, each blade having a' length (in the direction of travel) of 5 ctn). and a breadth of 5 meters. y

In Figs. 29 to 31, I illustrate my improvedf complete hyd'roflying machine, provided both with surfaces utilizing the dynamic reaction of the Water and surfaces utilizing the dynamic reaction of the air. The machine consists of the body portion C, the

Water blades'a, a, the air screwv ropellers E', E2, the motor F, the vertice'. lair-rudder T, all these parts being substantially of the same-structure as that described before. Apvait from these members, however, I provide large air-blades, A A, mounted on the body portion C, and strengthened by suitable cross bars. These air blades yas Well as in the air.

are able to be removed at Will when the machine is not to be used 'for traveling in the air; and suitable `means are provided for the purpose of mechanically changing their total area, according to the variationslof the speed. The horizontal rudder T is designed to regulate the travel of the machine above the surface of the Water The `total surface of the Water blades must be so large, that they support the machine, in coperation with the air blades A, A at a low speed of the machine. aeronaut, after starting the machine on the surface of the water, wiill gradually increase its speed, so that one blade after the other rises above the surface of the Water, until only the lowermost blade glides over the surface.) In increasing the speed further, the machine will, at times, leave all Contact with the water. During all these operations, the aeronaut will be assisted by the blades a a in upholding the equilibrium of the machine, because, as vsoon as the Inachine is a very little inclined to one side, a certain number of blades .passes through the water on the side of the. downward inclination, whereby the water exerts an upward pressure on the blades which prevents a further inclination and makes the same easily noticeable to the aeronaut, so, that he can intervene to reestablish the equilibrium. After some practice, the aeronaut will have acquired -suiicient skill in the operation of the vmachines so that he can leave the Waterl entirely. But even then,'the water bladesl will be very' useful by giving a reliable means to start the machine and to' stop the same gradually at the finish. On the other hand, air blades, as 'shown in Figs. 29 to 81, will also be used, to great advantage in hydroiiying machines, that are not intended' to ltravel inthe air, inasmuch as they give the apparatus an additional support, that is lnot affected by the undesirable iniiuence of the Waves. V

While I have described, in the foregoing .forms of flyingapparatusv that are' driven by machine-actuated ropellers, I wish it to be understood that t ey may also be driven b" the 'reaction of j ets of any kind of materia (steam, water,- fusees, 'etc.).-

Small apparatus may even entirely dispense with such motive power and my be driven by fthe hand of men, thereby a o ot er purposes,

vHaving aus fully described m invensecureby Letters Patent, is

In operating the machine, thev rd- `i1 anew craft to be vused inraces and for 1. In a water conveyance, a rod normally l substantially vertical in combination with a plurality of normally approximately horizontal superpo'sed supporting water-blades rigidly connected to said rod.

hull, and a plurality of superimposed ap-v proximately horizontal supporting waterblades all rigidly connected with the said rod, so as to be stationary with respect to each other.

In a water conveyance, the' combination with the hull of the same and a normally substantially verticalrod, of a plurality of supporting water-blades substantially perpendicular to and rigidly connected to said rod, and arranged below the'hull.

4. In a vwater conveyance, a plurality of superposed blades, in combination with' a connecting Jrod adapted to occupy an approximately vertical position said rod vbeing transverse to and rigidly connected to said-.blades within their periphery, whereby the periphery of saidV blades is free and unobstructed at all points. l 5.. In a water conveyance, a plurality of superposed normally approximately horizontal blades, in combination with a normally substantially vertical connecting rod transverse and rigidly connected to lsaid blades substantially on the geometrical locus of the centers of pressure of the longitudinal elements of the blades. 6. In a water conveyance, the combinationwith the hull or body of the same, of a beam projecting from said body .transversely thereto, a rod normally extending in a substantially vertical direction and carried by and depending from said beam, and superposed supporting blades, all rigidly connected to said rod.

7. In a water conveyance, the combina.- tion with the hull or body ofthe same, of a beam, journaled in or projecting tto both sides from said body transversely thereto, a rod extending downward from each prof jecting end of the beam in a normally substantially vertical direction, and a series of superposed supporting blades rigidly connected to each rod transversely-thereto.

'8f In a water conveyance, a hull or body, in combination with superposed supporting blades, and a rod depending in a normally substantially vertical direction from said body, said rod passing through and rigidly secured to said supporting blades.

9. In a water conveyance, the combina-V tion with the hull or body portion of the same, and a rod normally depending fromv said body portion in a substantially vertical direction, of a plurality ofsupportin blades placed at dierent levels said ro passing through the said bladesand rigidly connected to the same, said blades decreasing in area from the uppermost-to the lower most blade. i 10. In a water conveyance, the comblnavpart being at a tion with the hull or body portion of the same land a depending rod supported from thehull, of severalseries of-normallyapproximately horizontal supporting ivaterbladesjplaced oneabove the 'other Vand rigidly vconnectedv to the rod. i-'n the form of a n o v a grate,'the blades of said series descr-easing in area from the upper, to the lower blade. 11..In a water-conveyance, the vcombination with the hull or body of the'same .and a dependingrod supported from the hull,'"of

, superposed supporting blades rigidly connected to the rod, one or more of said blades bemg substantially in the form of a solid of uniform llexure strength with relation to lthe point of connection of said blade.

12, -In a water conveyance, a solid supporting water-blade concave Vrat its bottom, having front and rear thinned edges, and tapering toward the lateral ends.

13. In J'a water conveyance, the combination of the hull with a. water-guided part exposed to the resistance of the surrounding medium, saidv part being of lenticular cross-section, the greatest thickness of said point toward the `i'ront: edge ofthe same.

14:. In a water conveyance, the combination with the hull or body portion thereof, of a rodtransversely connected to a beam mounted on` the hull transversely thereto and out of the water, and superposed supporting blades transverse to and rigidly connected to said rod, the rod being adjustable in ,said beam in the direction of its length.

15. In a water conveyance, a hull in combination 'with a waterfsupporting devicev 'llo consisting of a number. of approximately horizontal plates spaced apart and a l depending rod passing through said plates and rigidly connected to the same.

16. In a water conveyance, .a transverse beam lsupported'on the hull, in combination with f depending rods rigidly connected thereto, and a series of water supporting blades rigidly secured to the rods.

17. In a water conveyance, a hull orbodyportion, fin combination with a watersupporting device formed vof a rodand a series of superposed metal plates spaced apart. and rigidly connected to the rod, the rodand series being substantially vertical.

18. In a water conveyance, a hull or body portion, in combination with a water blade, a carrying member forthesame mounted on' the hull, and aresilient connection between said carrying member and the hull.v

19. In a water conveyance, the combination with the'hull, or body portion, of the same, of a downwardly extending supporting blade mounted on the hull, a supplementalblade substantially .parallel to the supporting blade, a vibratory support for the supplemental blade, mounted on-the hull,

and a connection between sai-d vibratory support 'and-the pendant supporting blade. y

downwardly` tapering form and detached 10 from the hull of the Vessel.

In testimony whereof I affix my signature to this speoilieation in the presence of two witnesses.

ENRICO FORLANINI. Witnesses:

MICHELE DE DRAGO, B. CARLO SALVOTTI. 

